This is Narika Shina from Conception II.

Her base prompt:

c2n4rik4, long hair, purple eyes, blue hair, white hairband, hair bow, ahoge,

There's also 3d samples in the dataset if you're curious to try.

Her default outfit:

blue thighhighs, pleated skirt, ahoge, zettai ryouiki, school uniform, white hairband, shoes, necktie, long sleeves, miniskirt, black thighhighs,

Her swimsuit outfit:

swimsuit, print sarong, purple bikini, hairband, navel, o-ring top, cleavage, white sarong, polka dot bikini, o-ring bikini,

Her battle outfit:

cleavage, white thighhighs, skirt, white hairband, battle suit, clothing cutout, gloves, zettai ryouiki, navel, miniskirt, bare shoulders, boots,

holding energy gun,